用php写一个天气预报查询api

今天在看某娱乐网时候，发现一个源码，是"全国城市，天气查询html源码"，啥？html？

于是我把源码下载下来，还真是html，还有js加载接口，于是我自己有了一个写天气预报查询接口，然后我找到他那个js文件里面的接口，是https://sapi.k780.com/?app=weather.future&appkey=10003&sign=b59bc3ef6191eb9f747dd4e83c99f2a4&format=json&jsoncallback=getWeather&weaid=

然后就是传一个地点过去，然后就返回最近7日的天气，ok，完美于是我开写

这次难度有点大，要用到（正则表达式、CURL、json)

中途....

完成...

ok，完美，写好了

我的接口地址：http://api.weilaicloudy.com/cgi-bin/roots/weater.php?location=地点

请求方式：get

请求数据：location 地点

代码如下：

<?php
header("Content-type:application:json;charset=utf-8");
function get_curl($url,$post=0,$referer=0,$cookie=0,$header=0,$ua=0,$nobaody=0){
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL,$url);
	curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
	curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
	$httpheader[] = "Accept:*/*";
	$httpheader[] = "Accept-Encoding:gzip,deflate,sdch";
	$httpheader[] = "Accept-Language:zh-CN,zh;q=0.8";
	$httpheader[] = "Connection:close";
	curl_setopt($ch, CURLOPT_HTTPHEADER, $httpheader);
	curl_setopt($ch, CURLOPT_TIMEOUT, 30);
	if($post){
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
	}
	if($header){
		curl_setopt($ch, CURLOPT_HEADER, TRUE);
	}
	if($cookie){
		curl_setopt($ch, CURLOPT_COOKIE, $cookie);
	}
	if($referer){
		if($referer==1){
			curl_setopt($ch, CURLOPT_REFERER, 'http://m.qzone.com/infocenter?g_f=');
		}else{
			curl_setopt($ch, CURLOPT_REFERER, $referer);
		}
	}
	if($ua){
		curl_setopt($ch, CURLOPT_USERAGENT,$ua);
	}else{
		curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Linux; U; Android 4.4.1; zh-cn; R815T Build/JOP40D) AppleWebKit/533.1 (KHTML, like Gecko)Version/4.0 MQQBrowser/4.5 Mobile Safari/533.1');
	}
	if($nobaody){
		curl_setopt($ch, CURLOPT_NOBODY,1);
	}
	curl_setopt($ch, CURLOPT_ENCODING, "gzip");
	curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
	$ret = curl_exec($ch);
	curl_close($ch);
	return $ret;
} 
$l = $_GET['location'];
if(!$l)
{
exit('{"code":-1,"msg":"地点不能为空"}');
}
//第一步，取出json，去掉无用数据
$Data = get_curl('https://sapi.k780.com/?app=weather.future&appkey=10003&sign=b59bc3ef6191eb9f747dd4e83c99f2a4&format=json&jsoncallback=getWeather&weaid='.$_GET["location"]);
preg_match_all('/getWeather(\(.*?)\)/is',$Data,$v);



//第二步，去掉第一个字符(
$Data = substr($v[1][0],1);


//第3步，解析json
$Data = json_decode($Data,true);

if(!$Data["success"])
{
exit('{"code":-1,"msg":"地点有误"}');
}

//第4步，遍历数据流 完成
echo '{"code":200,"msg":"ok","data":[';
foreach($Data["result"] as $key=>$v)
{
echo '{"days":"'.$v["days"].'","week":"'.$v["week"].'","temperature":"'.$v["temperature"].'","weather":"'.$v["weather"].'","wind":"'.$v["wind"].'"},';
}
echo '{"status":true,"location":"'.$l.'","time":"'.time().'"}]}';
exit;
?>